CA2220592A1 - Optical path signal termination equipment - Google Patents

Optical path signal termination equipment

Info

Publication number
CA2220592A1
CA2220592A1 CA002220592A CA2220592A CA2220592A1 CA 2220592 A1 CA2220592 A1 CA 2220592A1 CA 002220592 A CA002220592 A CA 002220592A CA 2220592 A CA2220592 A CA 2220592A CA 2220592 A1 CA2220592 A1 CA 2220592A1
Authority
CA
Canada
Prior art keywords
optical path
signal
path signal
termination equipment
signal termination
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002220592A
Other languages
French (fr)
Other versions
CA2220592C (en
Inventor
Satoru Okamoto
Kenichi Satou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2220592A1 publication Critical patent/CA2220592A1/en
Application granted granted Critical
Publication of CA2220592C publication Critical patent/CA2220592C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/14—Monitoring arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J9/00—Multiplex systems in which each channel is represented by a different type of modulation of the carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0028—Local loop
    • H04J2203/003—Medium of transmission, e.g. fibre, cable, radio
    • H04J2203/0032—Fibre
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0046—User Network Interface
    • H04J2203/005—Terminal equipment, e.g. codecs, synch
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0089—Multiplexing, e.g. coding, scrambling, SONET

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

In optical path signal termination equipment which converts between an SDH
signal transmitted at the electrical level and an optical path signal transmitted at the optical level, an optical path supervisory signal is inserted in the optical path signal without increasing the signal length, by utilising the SDH section supervisory signal area contained in the SDH signal as the area for the optical path supervisory signal in the optical path signal.
CA002220592A 1996-11-13 1997-11-10 Optical path signal termination equipment Expired - Fee Related CA2220592C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP30211296 1996-11-13
JP8-302112 1996-11-13

Publications (2)

Publication Number Publication Date
CA2220592A1 true CA2220592A1 (en) 1998-05-13
CA2220592C CA2220592C (en) 2007-07-10

Family

ID=17905080

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002220592A Expired - Fee Related CA2220592C (en) 1996-11-13 1997-11-10 Optical path signal termination equipment

Country Status (4)

Country Link
US (1) US6094442A (en)
EP (1) EP0856964B1 (en)
CA (1) CA2220592C (en)
DE (1) DE69734346T2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11112430A (en) * 1997-10-08 1999-04-23 Fujitsu Ltd Optical subscriber network system and fault monitor method in its optical subscriber network system
JP3549716B2 (en) * 1997-11-28 2004-08-04 日本電気株式会社 Optical ADM device
DE19800619A1 (en) * 1998-01-12 1999-07-15 Lucent Tech Network Sys Gmbh Circuit for transmitting plesiochronic signals in Synchronous Digital Hierarchy transmission system
US6731876B1 (en) * 1998-02-23 2004-05-04 Nippon Telegraph And Telephone Corporation Packet transmission device and packet transmission system
DE19828971A1 (en) * 1998-06-29 2000-01-05 Siemens Ag Method for monitoring the signal quality in optical networks
US6614567B1 (en) * 1998-08-31 2003-09-02 Lucent Technologies Inc. Apparatus and method for upgrading the capacity of wavelength division multiplexed optical networks
US6917630B1 (en) * 1998-10-06 2005-07-12 Nortel Networks Limited Concatenation of containers in synchronous digital hierarchy network
JP2000216802A (en) * 1999-01-22 2000-08-04 Nec Corp Multi-access transmission device and its method
JP3356111B2 (en) * 1999-04-22 2002-12-09 日本電気株式会社 WDM network and node device for WDM network
US7146101B2 (en) * 2001-11-08 2006-12-05 Altera Corporation Optical media management channel
EP1357690B1 (en) * 2002-03-27 2005-07-06 Lightmaze Solutions AG Intelligent optical network element
FR2838901B1 (en) * 2002-04-18 2005-04-29 Cit Alcatel METHOD AND SYSTEM FOR CONTROLLING THE TRANSMISSION OF OPTICAL SIGNALS
CN2671239Y (en) * 2003-12-05 2005-01-12 华为技术有限公司 Synchronous digital transmitting system branch unit for supporting multiple service treatment
US7580632B1 (en) * 2004-04-08 2009-08-25 At&T Intellectual Property Ii, Lp Method and apparatus for managing lightpaths in optically-routed networks
CN1791278B (en) * 2004-12-14 2010-04-14 华为技术有限公司 Synchronous optical network and optical transmission network uniform dispatching system and its method
JP2017005384A (en) * 2015-06-05 2017-01-05 富士通株式会社 Optical network system, optical transmitter and detection method
JP7135783B2 (en) * 2018-11-27 2022-09-13 富士通株式会社 TRANSMISSION SYSTEM, TRANSMISSION DEVICE, AND TRANSMISSION METHOD

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04127743A (en) * 1990-09-19 1992-04-28 Fujitsu Ltd Transmission line testing system for wide band isdn
JP2770613B2 (en) * 1991-07-29 1998-07-02 日本電気株式会社 Optical signaling transmission method
DE69219282T2 (en) * 1991-11-20 1997-08-07 Nec Corp Synchronous optical multiplex system
US5383046A (en) * 1992-05-29 1995-01-17 Fujitsu Limited Supervisory and control signal transmitting system for use in optically amplifying repeaters system
DE4238899A1 (en) * 1992-11-19 1994-05-26 Philips Patentverwaltung Transmission system of the synchronous digital hierarchy
US5572515A (en) * 1994-12-28 1996-11-05 Tektronix, Inc. Sonet/SDH signal recognition and selection
JP3257762B2 (en) * 1996-03-07 2002-02-18 日本電信電話株式会社 Monitoring method of WDM optical communication

Also Published As

Publication number Publication date
DE69734346T2 (en) 2006-05-18
DE69734346D1 (en) 2006-02-23
EP0856964B1 (en) 2005-10-12
EP0856964A2 (en) 1998-08-05
US6094442A (en) 2000-07-25
CA2220592C (en) 2007-07-10
EP0856964A3 (en) 2000-01-19

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20091110